East Vermillion Lake Weather Forecast

    • 55
    • 65

    Chance Rain Showers

    • 54
    • 72

    Slight Chance Thunderstorms

    • 57
    • 76

    Slight Chance Thunderstorms

    • 59
    • 79

    Mostly Cloudy

    • 56
    • 73

    Partly Sunny

    • 54
    • 72

    Mostly Sunny

Today 19 Sep McCook

Patchy fog this morning. Cloudy with a chance of Showers with a slight chance of Thunderstorms. Highs in the mid 60s. West Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 19 Sep McCook

Mostly cloudy. A slight chance of Showers and Thunderstorms in the evening. Lows in the mid 50s. West Winds 5 to 10 Mph. Chance of rain 20 percent.

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East Vermillion Lake Temperature Statistics

September Temperature

Sioux Falls, Foss Field (20.5 miles)

  • Lowest 7 September, 2025

    36 °F

  • Average September

    66.2 °F

  • Highest 16 September, 2025

    91 °F

Climate (2020–Present)

Sioux Falls, Foss Field (20.5 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    49.8 °F

  • Average High 2020–2025

    60.6 °F
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